No socket, no limit · review
The honest twin: 3300 PSI stated throughout, with the hose bore published.
Where this ends up Nineteen dollars above its own near-twin, and the difference is that this listing’s title tells the truth about its pressure. Same Honda GX200, same triplex pump, same hose — and it publishes the hose bore, which the other does not.
The Simpson PS61002 at $639.99 sits beside this on the shelf, and it is titled 3500 PSI.
Its own bullet says “3300 PSI 2.5 GPM AAA triplex pump”. Its own description says “Delivering 3300 PSI at 2.5 GPM”.
Two hundred PSI overstated, in the one place a buyer looks first.
This listing publishes 3300 PSI in its title, its bullets and its description alike.
And the machines are otherwise the same:
the same Honda GX200 with low-oil shutdown · the same AAA triplex plunger pump with integrated unloader and thermal relief · the same 25 foot Morflex hose with a non-marring polyurethane jacket · the same 10 inch pneumatic tires · the same threaded M22 · the same five tips and 16 inch wand · the same 21 × 24 × 34 inch frame
Weights: 77 lb here, 74 lb there — and the catalog figures agree closely, at 33,929 g (1196.8 oz) and 33,021 g (1164.8 oz).
What this adds beyond the honest title: the hose bore, “5/16-inch x 25-foot”, which the other omits.
So nineteen dollars buys a page that reports its own product correctly and tells you one thing more. On a machine you intend to keep for a decade, that is the cheaper purchase.
Worth noting why third-party verification exists at all in this category: the PowerSmart at $259.99 is the only listing here with PWMA performance certification, which means its PSI and GPM were measured by somebody other than the maker.
5/16 inch by 25 feet. Three listings on this shelf publish a bore, and the pattern between them is the useful part.
A hose loses pressure to friction along its length, and a narrower bore loses more. So bore has to grow with both length and flow:
Westinghouse WPX3000 — 0.25 inch over 25 feet at 2.3 GPM, the narrowest here Simpson PS3228 and Aluminum 3600 — 5/16 inch over 25 and 35 feet at 2.5 GPM Simpson CRX 4400 and PS60869 — 3/8 inch over 50 feet at 3.5 to 4.0 GPM
Fifty feet of 5/16 inch at 4 GPM would drop too much pressure at the nozzle, which is why the Monster hoses are wider.
The practical consequence, which no listing states: if you buy a longer hose later, match the bore to the length. A 50-foot quarter-inch extension on a 3300 PSI machine will cost you real pressure at the gun, and you will blame the machine.
Twenty-five feet is the short end of the shelf — the PowerSmart and Aluminum Series 3600 give 35, the three big Simpsons 50.
“Maintenance-free 3300 PSI 2.5 GPM AAA triplex plunger pump.”
The three Westinghouse machines use the same phrase: “long lasting, maintenance-free axial cam pump.”
They do not mean the same thing.
On an axial cam pump — the Westinghouses and the DeWalt — maintenance-free means sealed and unserviceable. Nothing opens; when the seals fail the pump is replaced. Service life is typically in the low hundreds of hours.
On a triplex plunger pump — all five Simpsons — it means the crankcase oil is filled for life while the seals and valves remain replaceable. Three pistons on their own crankshaft, running slower and cooler, rated in the thousands of hours.
That is the real division on this shelf, and it maps onto price exactly.
What this listing publishes alongside is what keeps the pump alive:
An integrated unloader diverts flow back at the pump when you release the trigger, instead of letting pressure build against a closed gun.
Thermal relief dumps water before recirculation heats it enough to destroy the seals.
Both exist because the commonest way any of these pumps dies is being left running with the trigger off. The three Westinghouse machines publish neither. The DeWalt at $429 publishes thermal relief alone.
Honda GX200 with low-oil shutdown, shared with the PS61002 and the Aluminum Series 3600.
The shelf: Honda GX200 ×3 · Honda GX270 on the PS60869 · Honda GX390 on the ALH4240 · Simpson CRX 420cc on the CRX 4400 at $899.99 · Westinghouse 212cc OHV ×3 · DeWalt 208cc · PowerSmart 212cc OHV.
A GX200 is the most widely serviced small engine in the world. Carburettors, recoil springs and gasket sets are available anywhere, and anyone who services mowers knows it. On a ten-year machine that is worth more than extra displacement.
Low-oil shutdown cuts the ignition before the engine seizes, which on a machine used a few times a year after months in a garage is the realistic failure. Published here, on the four Honda Simpsons and on the DeWalt. Absent from the three Westinghouse listings, the PowerSmart, and the $899.99 CRX.
3300 × 2.5 = 8250. The industry measure is PSI × GPM, and no listing here publishes it.
Simpson CRX 4400 — 17,600 · Simpson ALH4240 — 16,800 · Simpson PS60869 — 14,000 · PowerSmart — 9500 · Simpson Aluminum 3600 — 9000 · Westinghouse WPX3400 — 8840 · this and PS61002 — 8250 · Westinghouse WPX3200 — 8000 · DeWalt — 7920 · Westinghouse WPX3000 — 6900
So the Westinghouse WPX3400 at $349 does more work per minute than this at $659, and the PowerSmart at $259.99 does considerably more with certified figures.
That is the honest shape of this shelf: output is cheap, durability is not. Three hundred extra dollars buys a rebuildable pump, an engine anyone can service, and two valves protecting both — not a faster afternoon.
Pressure cuts, flow rinses. At 2.5 GPM this matches the WPX3200, the PowerSmart and three other Simpsons on flow.
“Non-marring polyurethane jacket helps protect finished surfaces.”
Twenty-five feet of high-pressure hose gets dragged across whatever you are working on, and a rubber hose leaves black streaks on painted siding, decking and paving — which you then clean off.
A polyurethane jacket does not. Three Simpson listings publish it; no Westinghouse, DeWalt or PowerSmart listing does.
Threaded M22 is the domestic standard, and it is what lets you add a surface cleaner or a foam cannon later. Only the Westinghouse WPX3400 on this shelf actually says what M22 lets you buy — naming surface cleaners, undercarriage cleaners and foam cannons.
For a surface cleaner specifically, flow is the figure that matters: the head has no motor, and its nozzles are spun by the water leaving them. At 2.5 GPM this will drive a twelve to sixteen inch head properly.
0°, 15°, 25°, 40° and soap, described as covering “tasks from stripping paint to car cleaning”.
That phrase is accurate and it is also the caution nobody on this shelf gives. Stripping paint is the 0° and 15° job, and a 0° tip at 3300 PSI is a pencil jet with no fan at all: it cuts flesh, carves visible grooves in decking in one pass, and drives mortar out of brickwork.
at least eleven of the sixteen listings here include one. None warns about it.
Use the 25° for almost everything, the 40° on anything painted or wooden, and keep the 0° for concrete you do not mind marking.
Nine of eleven listings supply five tips; the Westinghouse WPX3000 supplies four, dropping the 15°.
No warranty, and this is the counter-argument to everything above. The three Westinghouse machines publish “3-Year Limited Service, Labor, and Parts Coverage with Nationwide Customer Service and Support Network”. All five Simpsons, the DeWalt and the PowerSmart publish nothing.
So the machines with the rebuildable pump come with no promise, and the machines with the sealed pump come with three years.
No soap tank or detergent route. Two Westinghouse machines publish a “Half Gallon Onboard Soap Tank” and the third a “detergent siphon hose”. This publishes a soap nozzle and nothing about where the soap comes from.
No PWMA certification, which only the PowerSmart claims.
No fuel tank capacity, which all three Westinghouse listings publish.
And not for sale in California, as with all five Simpsons here.
Read on the day this page was built: $660 at the American Amazon shop.
Read from Keepa on the day this page was last revised; stock and price both move without notice.
Prices quoted in this text were read on 2026-10-04. The live price is at the top of the page.
| Pressure | 3300 PSI, stated in the title, the bullets and the description alike |
|---|---|
| Hose | 5/16 inch by 25 foot Morflex — the bore is published, which its twin omits |
| Flow | 2.5 GPM |
| Pump | Maintenance-free AAA triplex plunger with an integrated unloader and thermal relief |
| Engine | Honda GX200 with low-oil shutdown |
| Connection | Threaded M22 |
| Tires | 10 inch premium pneumatic |
| Frame | Welded steel, powder-coated |
| Weight | 77 lb per the bullet, 33,929 g (1196.8 oz) per the catalog |
| Dimensions | 21 × 24 × 34 inches, published |
| Nozzles | Five quick-connect tips plus a rear-load M22 gun and 16 inch wand |
| Compliance | 49-state — not for sale in California |
| Warranty | Not published |
| Amazon reference | B007QDYQEK |
| EAN | 0879399001178 |
Because that listing’s title is wrong and this one’s is right. The PS61002 at $639.99 is titled 3500 PSI while its own bullet says "3300 PSI 2.5 GPM AAA triplex pump" and its description says "Delivering 3300 PSI at 2.5 GPM" — two hundred PSI overstated in the one place a buyer looks first. This listing publishes 3300 PSI in its title, its bullets and its description alike. Everything else matches: the same Honda GX200 with low-oil shutdown, the same AAA triplex plunger pump with an integrated unloader and thermal relief, the same 25 foot Morflex hose with a non-marring polyurethane jacket, the same 10 inch pneumatic tires, the same threaded M22, the same five tips and 16 inch wand, the same 21 × 24 × 34 inch frame. Weights are 77 lb here and 74 lb there. And this listing adds one figure the other omits: the hose bore, "5/16-inch x 25-foot". So nineteen dollars buys a page that reports its own product correctly and tells you one thing more. On a machine you intend to keep, that is the cheaper purchase.
Yes, and only three listings on this shelf publish one. This gives "5/16-inch x 25-foot MorFlex". The reason: a hose loses pressure to friction along its length, and a narrower bore loses more. So bore has to scale with both length and flow. The pattern across the shelf confirms it — the 25 and 35 foot Morflex hoses are 5/16 inch, and the 50 foot Monster hoses on the three big Simpsons are 3/8 inch, because fifty feet of 5/16 would drop too much pressure at 3.5 to 4 GPM. At the other end, the Westinghouse WPX3000 publishes the narrowest on the shelf: "Interior Hose Diameter - 0.25 inches", which is acceptable over 25 feet at 2.3 GPM and would not be over 50. The practical consequence: if you later buy a longer hose, match the bore to the length. A 50-foot 1/4 inch extension on a 3300 PSI machine will cost you real pressure at the nozzle, and you will blame the machine.
Something different from what it means on the cheap machines, and the phrase appears on both. This publishes a "Maintenance-free 3300 PSI 2.5 GPM AAA triplex plunger pump with an integrated unloader and thermal relief". The three Westinghouse machines publish a "long lasting, maintenance-free axial cam pump". On an axial cam pump, maintenance-free means sealed and unserviceable — there is nothing to open, and when the seals fail the pump is replaced. On a triplex plunger pump it means the crankcase oil is filled for life while the seals and valves remain replaceable, which is why these are rated in thousands of hours rather than hundreds. Same two words, opposite implications. What this listing publishes alongside is what actually keeps the pump alive: an integrated unloader, which diverts flow at the pump when the trigger is released, and thermal relief, which dumps water before recirculation cooks the seals. The three Westinghouse machines publish neither; the DeWalt at $429 publishes thermal relief alone.
cleaning machines from the same category, at nearby prices. Only what all of them publish is shown: a column with holes compares nothing.
| Model | Price | Hose | Pump | Engine | Tires |
|---|---|---|---|---|---|
| SIMPSON PS3228 | $660 | 5/16 inch by 25 foot Morflex — the bore is published, which its twin omits | Maintenance-free AAA triplex plunger with an integrated unloader and thermal relief | Honda GX200 with low-oil shutdown | 10 inch premium pneumatic |
| Simpson PS61002-S | $640 | 25 foot Morflex, kink and abrasion-resistant, non-marring polyurethane jacket | AAA triplex plunger with an integrated unloader and thermal relief | Honda GX200 with low-oil shutdown | 10 inch premium pneumatic |
| Simpson 60689 | $730 | 35 feet, Morflex 5/16 inch, non-marring and abrasion-resistant | AAA triplex plunger with an integrated unloader, thermal relief and PowerBoost | Honda GX200 with low-oil shutdown | 10 inch premium pneumatic |
| Simpson PS60869 | $830 | 3/8 inch by 50 foot Monster, kink and abrasion-resistant | AAA industrial triplex plunger with thermal relief, direct drive | Honda GX270 — a real Honda, where the dearer CRX uses a house engine | 13 inch premium pneumatic |
Details checked on October 4, 2026.
The same job as the $639.99 Simpson, bought from the listing that adds up
Amazon reports what buyers took in the month before this page was last checked: at least 50.
The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.
Specifications: the manufacturer sheet for cleaning machines and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
2,200 PSI (≈ 152 bar) · 2.3 GPM · single-cylinder air-cooled
The most modest petrol machine here, and the only one listed on all six Amazon stores.
Best for: Large gardens and outbuildings without power, where 150 bar is plenty
170–190 bar · 3,400 rpm · axial cam pump · self-priming
A modest pressure range honestly stated, on an axial pump — the entry to petrol here.
Best for: Occasional work away from a socket — a smallholding, a boat yard, a second property
234 bar working · 590 l/h · 5.9 hp four-stroke · 9 m (30 ft) hose
The only machine on this site that publishes a working pressure and a flow rate together.
Best for: Farmyards, contractors and large properties without power at the far end
